Mercury

1. a cool thing happens because mercury rotates so slowly and orbits so fast ..... the sun moves backwards!
2. by the time one year has passed on pluto (after 248 years) 1,028 years have happened on mercury!
3. you can only see mercury just before the sun rises, jut before the sun sets, and at a solar eclispe!
4. mercury has a very teneous atmosphere which affords no protection for the planets surface, which is covered by numerous impact craters and very much resembles the moon.

Saturn

1. Saturn is so big that earth could fit into it 755 times
2. Saturns rings may be particles from an old moon orbiting the planet , smashed apart in a collision millions of years ago
3. Saturns largest moon titanis is the only moon in the solarsystem to possess an atmosphere
4. Saturn is the jewel of the solar system.

Kuiper Belt

1. The Kuiper Belt is a disc shaped region of icy objects beyond the orbit of neptune -billions of kilometers from the sun
2. Scientists think this stuff has stayed unchanged from the time the solar system first formed
3. The kuiper belt is belived to be the home of many comets orbiting our sun
4. The kuiper belt extends from about 30 to 55 au and is probably populated with hundreds of thousands of icy bodies larger than 100 km (62 miles) across and an estimated trillion of comets
5. The kuiper belt is an icy debris orbiting the sun beyond neptune

Black Hole

1. black holes often shoot out